OTRC: Melissa Joan Hart welcomes 3rd son, Tucker

Melissa Joan Hart appears in a photo posted on her official Twitter page on August 15, 2012. / Melissa Joan Hart shares news of her pregnancy with her Twitter fans via this photo of her with her family, posted on April 17, 2012. (Twitter.com/MelissaJoanHart)

Hart announced her third pregnancy on Twitter on April 17, a day before her 36th birthday. She also posted a photo that showed her standing with her husband and their two sons Mason, 6, and Braydon, 4. The three were shown putting their hands on Hart's baby bump. (See above).

The actress married Wilkerson, lead singer and guitarist for the alternative rock band Course of Nature, in Florence, Italy in July 2003.